Question $2$

Design and implement a simple console application in C$++$ that models an online store

inventory system, based on the requirements and class relationships described below:

Class Descriptions:

Item: Represents a generic item sold in the online store. Each item is characterized by a

unique identifier $($ID$),$ a name, and a price. The Item class should provide methods to get

and set these properties. Additionally, it should include a method to print item details.

Vendor: Represents a vendor supplying items to the store. A vendor is described by a

vendor ID$,$ a name, and an address. This class should provide methods to get and set these

properties. The toString$()$ method should return a string representation of the vendor,

including all its details.

StoreItem: Extends the Item class. In addition to the properties inherited from Item,

StoreItem includes a property to store the vendor $($supplier$)$ of the item. The class should

override the method to print item details to include vendor information if available. It

should also include a method getVendorName$()$ that returns the name of the vendor if set,

or "Unknown" if not.

Implementation Details:

$$ The StoreItem class should be initialized with an ID$,$ name, and price. Vendor details

should be set using a separate method, setVendor$(),$ which takes a Vendor object as

a parameter.

$$ The toString$()$ method in both Vendor and StoreItem should return a string

representation of the object's state in a readable format. For StoreItem, implement

two versions of toString$()$: one that only returns item details and another that also

includes vendor details based on a boolean parameter.

Application Flow:

$$ Your console application should prompt the user to enter details for a list of items

and their corresponding vendors.

$$ After entering the details, the application should display the information of each

StoreItem using the toString$()$ method, first without vendor details and then with

vendor details.

$$ It should also demonstrate the use of getVendorName$()$ for each StoreItem.

Assignment Objectives:

$$ Demonstrate understanding of class inheritance and polymorphism in C$++.$

$$ Implement class methods, including constructors, accessors, mutators, and methods

for string representation of objects.

$$ Handle user input in a console application and display output based on the user

input.

Submission Requirements:

Source code files for your Qt application and screenshots of test runs of your program.

Evaluation Criteria:

$$ Correct implementation of class hierarchy as described.

$$ Proper use of inheritance and method overriding.

$$ Code readability and adherence to C$++$ best practices.

$$ Ability to process and respond to user input in the console application.